src/analyze/analyze.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 /***
   3   Copyright © 2013 Simon Peeters
   4 ***/
   5
   6 #include <getopt.h>
   7 #include <inttypes.h>
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11
  12 #include "sd-bus.h"
  13
  14 #include "alloc-util.h"
  15 #include "analyze.h"
  16 #include "analyze-blame.h"
  17 #include "analyze-calendar.h"
  18 #include "analyze-capability.h"
  19 #include "analyze-cat-config.h"
  20 #include "analyze-condition.h"
  21 #include "analyze-critical-chain.h"
  22 #include "analyze-dot.h"
  23 #include "analyze-dump.h"
  24 #include "analyze-exit-status.h"
  25 #include "analyze-filesystems.h"
  26 #include "analyze-inspect-elf.h"
  27 #include "analyze-log-control.h"
  28 #include "analyze-plot.h"
  29 #include "analyze-security.h"
  30 #include "analyze-service-watchdogs.h"
  31 #include "analyze-syscall-filter.h"
  32 #include "analyze-time.h"
  33 #include "analyze-time-data.h"
  34 #include "analyze-timespan.h"
  35 #include "analyze-timestamp.h"
  36 #include "analyze-unit-files.h"
  37 #include "analyze-unit-paths.h"
  38 #include "analyze-compare-versions.h"
  39 #include "analyze-verify.h"
  40 #include "build.h"
  41 #include "bus-error.h"
  42 #include "bus-locator.h"
  43 #include "bus-map-properties.h"
  44 #include "bus-unit-util.h"
  45 #include "calendarspec.h"
  46 #include "cap-list.h"
  47 #include "capability-util.h"
  48 #include "conf-files.h"
  49 #include "copy.h"
  50 #include "def.h"
  51 #include "exit-status.h"
  52 #include "extract-word.h"
  53 #include "fd-util.h"
  54 #include "fileio.h"
  55 #include "filesystems.h"
  56 #include "format-table.h"
  57 #include "glob-util.h"
  58 #include "hashmap.h"
  59 #include "locale-util.h"
  60 #include "log.h"
  61 #include "main-func.h"
  62 #include "mount-util.h"
  63 #include "nulstr-util.h"
  64 #include "pager.h"
  65 #include "parse-argument.h"
  66 #include "parse-util.h"
  67 #include "path-util.h"
  68 #include "pretty-print.h"
  69 #include "rm-rf.h"
  70 #if HAVE_SECCOMP
  71 #  include "seccomp-util.h"
  72 #endif
  73 #include "sort-util.h"
  74 #include "special.h"
  75 #include "stat-util.h"
  76 #include "string-table.h"
  77 #include "strv.h"
  78 #include "strxcpyx.h"
  79 #include "terminal-util.h"
  80 #include "time-util.h"
  81 #include "tmpfile-util.h"
  82 #include "unit-name.h"
  83 #include "verb-log-control.h"
  84 #include "verbs.h"
  85 #include "version.h"
  86
  87 DotMode arg_dot = DEP_ALL;
  88 char **arg_dot_from_patterns = NULL, **arg_dot_to_patterns = NULL;
  89 usec_t arg_fuzz = 0;
  90 PagerFlags arg_pager_flags = 0;
  91 BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
  92 const char *arg_host = NULL;
  93 LookupScope arg_scope = LOOKUP_SCOPE_SYSTEM;
  94 RecursiveErrors arg_recursive_errors = _RECURSIVE_ERRORS_INVALID;
  95 bool arg_man = true;
  96 bool arg_generators = false;
  97 char *arg_root = NULL;
  98 static char *arg_image = NULL;
  99 char *arg_security_policy = NULL;
 100 bool arg_offline = false;
 101 unsigned arg_threshold = 100;
 102 unsigned arg_iterations = 1;
 103 usec_t arg_base_time = USEC_INFINITY;
 104 char *arg_unit = NULL;
 105 JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF;
 106 bool arg_quiet = false;
 107 char *arg_profile = NULL;
 108
 109 STATIC_DESTRUCTOR_REGISTER(arg_dot_from_patterns, strv_freep);
 110 STATIC_DESTRUCTOR_REGISTER(arg_dot_to_patterns, strv_freep);
 111 STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
 112 STATIC_DESTRUCTOR_REGISTER(arg_image, freep);
 113 STATIC_DESTRUCTOR_REGISTER(arg_security_policy, freep);
 114 STATIC_DESTRUCTOR_REGISTER(arg_unit, freep);
 115 STATIC_DESTRUCTOR_REGISTER(arg_profile, freep);
 116
 117 int acquire_bus(sd_bus **bus, bool *use_full_bus) {
 118         bool user = arg_scope != LOOKUP_SCOPE_SYSTEM;
 119         int r;
 120
 121         if (use_full_bus && *use_full_bus) {
 122                 r = bus_connect_transport(arg_transport, arg_host, user, bus);
 123                 if (IN_SET(r, 0, -EHOSTDOWN))
 124                         return r;
 125
 126                 *use_full_bus = false;
 127         }
 128
 129         return bus_connect_transport_systemd(arg_transport, arg_host, user, bus);
 130 }
 131
 132 int bus_get_unit_property_strv(sd_bus *bus, const char *path, const char *property, char ***strv) {
 133         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
 134         int r;
 135
 136         assert(bus);
 137         assert(path);
 138         assert(property);
 139         assert(strv);
 140
 141         r = sd_bus_get_property_strv(
 142                         bus,
 143                         "org.freedesktop.systemd1",
 144                         path,
 145                         "org.freedesktop.systemd1.Unit",
 146                         property,
 147                         &error,
 148                         strv);
 149         if (r < 0)
 150                 return log_error_errno(r, "Failed to get unit property %s: %s", property, bus_error_message(&error, r));
 151
 152         return 0;
 153 }
 154
 155 void time_parsing_hint(const char *p, bool calendar, bool timestamp, bool timespan) {
 156         if (calendar && calendar_spec_from_string(p, NULL) >= 0)
 157                 log_notice("Hint: this expression is a valid calendar specification. "
 158                            "Use 'systemd-analyze calendar \"%s\"' instead?", p);
 159         if (timestamp && parse_timestamp(p, NULL) >= 0)
 160                 log_notice("Hint: this expression is a valid timestamp. "
 161                            "Use 'systemd-analyze timestamp \"%s\"' instead?", p);
 162         if (timespan && parse_time(p, NULL, USEC_PER_SEC) >= 0)
 163                 log_notice("Hint: this expression is a valid timespan. "
 164                            "Use 'systemd-analyze timespan \"%s\"' instead?", p);
 165 }
 166
 167 static int help(int argc, char *argv[], void *userdata) {
 168         _cleanup_free_ char *link = NULL, *dot_link = NULL;
 169         int r;
 170
 171         pager_open(arg_pager_flags);
 172
 173         r = terminal_urlify_man("systemd-analyze", "1", &link);
 174         if (r < 0)
 175                 return log_oom();
 176
 177         /* Not using terminal_urlify_man() for this, since we don't want the "man page" text suffix in this case. */
 178         r = terminal_urlify("man:dot(1)", "dot(1)", &dot_link);
 179         if (r < 0)
 180                 return log_oom();
 181
 182         printf("%s [OPTIONS...] COMMAND ...\n\n"
 183                "%sProfile systemd, show unit dependencies, check unit files.%s\n"
 184                "\nCommands:\n"
 185                "  [time]                     Print time required to boot the machine\n"
 186                "  blame                      Print list of running units ordered by\n"
 187                "                             time to init\n"
 188                "  critical-chain [UNIT...]   Print a tree of the time critical chain\n"
 189                "                             of units\n"
 190                "  plot                       Output SVG graphic showing service\n"
 191                "                             initialization\n"
 192                "  dot [UNIT...]              Output dependency graph in %s format\n"
 193                "  dump [PATTERN...]          Output state serialization of service\n"
 194                "                             manager\n"
 195                "  cat-config                 Show configuration file and drop-ins\n"
 196                "  unit-files                 List files and symlinks for units\n"
 197                "  unit-paths                 List load directories for units\n"
 198                "  exit-status [STATUS...]    List exit status definitions\n"
 199                "  capability [CAP...]        List capability definitions\n"
 200                "  syscall-filter [NAME...]   List syscalls in seccomp filters\n"
 201                "  filesystems [NAME...]      List known filesystems\n"
 202                "  condition CONDITION...     Evaluate conditions and asserts\n"
 203                "  compare-versions VERSION1 [OP] VERSION2\n"
 204                "                             Compare two version strings\n"
 205                "  verify FILE...             Check unit files for correctness\n"
 206                "  calendar SPEC...           Validate repetitive calendar time\n"
 207                "                             events\n"
 208                "  timestamp TIMESTAMP...     Validate a timestamp\n"
 209                "  timespan SPAN...           Validate a time span\n"
 210                "  security [UNIT...]         Analyze security of unit\n"
 211                "  inspect-elf FILE...        Parse and print ELF package metadata\n"
 212                "\nOptions:\n"
 213                "     --recursive-errors=MODE Control which units are verified\n"
 214                "     --offline=BOOL          Perform a security review on unit file(s)\n"
 215                "     --threshold=N           Exit with a non-zero status when overall\n"
 216                "                             exposure level is over threshold value\n"
 217                "     --security-policy=PATH  Use custom JSON security policy instead\n"
 218                "                             of built-in one\n"
 219                "     --json=pretty|short|off Generate JSON output of the security\n"
 220                "                             analysis table\n"
 221                "     --no-pager              Do not pipe output into a pager\n"
 222                "     --system                Operate on system systemd instance\n"
 223                "     --user                  Operate on user systemd instance\n"
 224                "     --global                Operate on global user configuration\n"
 225                "  -H --host=[USER@]HOST      Operate on remote host\n"
 226                "  -M --machine=CONTAINER     Operate on local container\n"
 227                "     --order                 Show only order in the graph\n"
 228                "     --require               Show only requirement in the graph\n"
 229                "     --from-pattern=GLOB     Show only origins in the graph\n"
 230                "     --to-pattern=GLOB       Show only destinations in the graph\n"
 231                "     --fuzz=SECONDS          Also print services which finished SECONDS\n"
 232                "                             earlier than the latest in the branch\n"
 233                "     --man[=BOOL]            Do [not] check for existence of man pages\n"
 234                "     --generators[=BOOL]     Do [not] run unit generators\n"
 235                "                             (requires privileges)\n"
 236                "     --iterations=N          Show the specified number of iterations\n"
 237                "     --base-time=TIMESTAMP   Calculate calendar times relative to\n"
 238                "                             specified time\n"
 239                "     --profile=name|PATH     Include the specified profile in the\n"
 240                "                             security review of the unit(s)\n"
 241                "  -h --help                  Show this help\n"
 242                "     --version               Show package version\n"
 243                "  -q --quiet                 Do not emit hints\n"
 244                "     --root=PATH             Operate on an alternate filesystem root\n"
 245                "     --image=PATH            Operate on disk image as filesystem root\n"
 246                "\nSee the %s for details.\n",
 247                program_invocation_short_name,
 248                ansi_highlight(),
 249                ansi_normal(),
 250                dot_link,
 251                link);
 252
 253         /* When updating this list, including descriptions, apply changes to
 254          * shell-completion/bash/systemd-analyze and shell-completion/zsh/_systemd-analyze too. */
 255
 256         return 0;
 257 }
 258
 259 static int parse_argv(int argc, char *argv[]) {
 260         enum {
 261                 ARG_VERSION = 0x100,
 262                 ARG_ORDER,
 263                 ARG_REQUIRE,
 264                 ARG_ROOT,
 265                 ARG_IMAGE,
 266                 ARG_SYSTEM,
 267                 ARG_USER,
 268                 ARG_GLOBAL,
 269                 ARG_DOT_FROM_PATTERN,
 270                 ARG_DOT_TO_PATTERN,
 271                 ARG_FUZZ,
 272                 ARG_NO_PAGER,
 273                 ARG_MAN,
 274                 ARG_GENERATORS,
 275                 ARG_ITERATIONS,
 276                 ARG_BASE_TIME,
 277                 ARG_RECURSIVE_ERRORS,
 278                 ARG_OFFLINE,
 279                 ARG_THRESHOLD,
 280                 ARG_SECURITY_POLICY,
 281                 ARG_JSON,
 282                 ARG_PROFILE,
 283         };
 284
 285         static const struct option options[] = {
 286                 { "help",             no_argument,       NULL, 'h'                  },
 287                 { "version",          no_argument,       NULL, ARG_VERSION          },
 288                 { "quiet",            no_argument,       NULL, 'q'                  },
 289                 { "order",            no_argument,       NULL, ARG_ORDER            },
 290                 { "require",          no_argument,       NULL, ARG_REQUIRE          },
 291                 { "root",             required_argument, NULL, ARG_ROOT             },
 292                 { "image",            required_argument, NULL, ARG_IMAGE            },
 293                 { "recursive-errors", required_argument, NULL, ARG_RECURSIVE_ERRORS },
 294                 { "offline",          required_argument, NULL, ARG_OFFLINE          },
 295                 { "threshold",        required_argument, NULL, ARG_THRESHOLD        },
 296                 { "security-policy",  required_argument, NULL, ARG_SECURITY_POLICY  },
 297                 { "system",           no_argument,       NULL, ARG_SYSTEM           },
 298                 { "user",             no_argument,       NULL, ARG_USER             },
 299                 { "global",           no_argument,       NULL, ARG_GLOBAL           },
 300                 { "from-pattern",     required_argument, NULL, ARG_DOT_FROM_PATTERN },
 301                 { "to-pattern",       required_argument, NULL, ARG_DOT_TO_PATTERN   },
 302                 { "fuzz",             required_argument, NULL, ARG_FUZZ             },
 303                 { "no-pager",         no_argument,       NULL, ARG_NO_PAGER         },
 304                 { "man",              optional_argument, NULL, ARG_MAN              },
 305                 { "generators",       optional_argument, NULL, ARG_GENERATORS       },
 306                 { "host",             required_argument, NULL, 'H'                  },
 307                 { "machine",          required_argument, NULL, 'M'                  },
 308                 { "iterations",       required_argument, NULL, ARG_ITERATIONS       },
 309                 { "base-time",        required_argument, NULL, ARG_BASE_TIME        },
 310                 { "unit",             required_argument, NULL, 'U'                  },
 311                 { "json",             required_argument, NULL, ARG_JSON             },
 312                 { "profile",          required_argument, NULL, ARG_PROFILE          },
 313                 {}
 314         };
 315
 316         int r, c;
 317
 318         assert(argc >= 0);
 319         assert(argv);
 320
 321         while ((c = getopt_long(argc, argv, "hH:M:U:", options, NULL)) >= 0)
 322                 switch (c) {
 323
 324                 case 'h':
 325                         return help(0, NULL, NULL);
 326
 327                 case ARG_VERSION:
 328                         return version();
 329
 330                 case 'q':
 331                         arg_quiet = true;
 332                         break;
 333
 334                 case ARG_RECURSIVE_ERRORS:
 335                         if (streq(optarg, "help")) {
 336                                 DUMP_STRING_TABLE(recursive_errors, RecursiveErrors, _RECURSIVE_ERRORS_MAX);
 337                                 return 0;
 338                         }
 339                         r = recursive_errors_from_string(optarg);
 340                         if (r < 0)
 341                                 return log_error_errno(r, "Unknown mode passed to --recursive-errors='%s'.", optarg);
 342
 343                         arg_recursive_errors = r;
 344                         break;
 345
 346                 case ARG_ROOT:
 347                         r = parse_path_argument(optarg, /* suppress_root= */ true, &arg_root);
 348                         if (r < 0)
 349                                 return r;
 350                         break;
 351
 352                 case ARG_IMAGE:
 353                         r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_image);
 354                         if (r < 0)
 355                                 return r;
 356                         break;
 357
 358                 case ARG_SYSTEM:
 359                         arg_scope = LOOKUP_SCOPE_SYSTEM;
 360                         break;
 361
 362                 case ARG_USER:
 363                         arg_scope = LOOKUP_SCOPE_USER;
 364                         break;
 365
 366                 case ARG_GLOBAL:
 367                         arg_scope = LOOKUP_SCOPE_GLOBAL;
 368                         break;
 369
 370                 case ARG_ORDER:
 371                         arg_dot = DEP_ORDER;
 372                         break;
 373
 374                 case ARG_REQUIRE:
 375                         arg_dot = DEP_REQUIRE;
 376                         break;
 377
 378                 case ARG_DOT_FROM_PATTERN:
 379                         if (strv_extend(&arg_dot_from_patterns, optarg) < 0)
 380                                 return log_oom();
 381
 382                         break;
 383
 384                 case ARG_DOT_TO_PATTERN:
 385                         if (strv_extend(&arg_dot_to_patterns, optarg) < 0)
 386                                 return log_oom();
 387
 388                         break;
 389
 390                 case ARG_FUZZ:
 391                         r = parse_sec(optarg, &arg_fuzz);
 392                         if (r < 0)
 393                                 return r;
 394                         break;
 395
 396                 case ARG_NO_PAGER:
 397                         arg_pager_flags |= PAGER_DISABLE;
 398                         break;
 399
 400                 case 'H':
 401                         arg_transport = BUS_TRANSPORT_REMOTE;
 402                         arg_host = optarg;
 403                         break;
 404
 405                 case 'M':
 406                         arg_transport = BUS_TRANSPORT_MACHINE;
 407                         arg_host = optarg;
 408                         break;
 409
 410                 case ARG_MAN:
 411                         r = parse_boolean_argument("--man", optarg, &arg_man);
 412                         if (r < 0)
 413                                 return r;
 414                         break;
 415
 416                 case ARG_GENERATORS:
 417                         r = parse_boolean_argument("--generators", optarg, &arg_generators);
 418                         if (r < 0)
 419                                 return r;
 420                         break;
 421
 422                 case ARG_OFFLINE:
 423                         r = parse_boolean_argument("--offline", optarg, &arg_offline);
 424                         if (r < 0)
 425                                 return r;
 426                         break;
 427
 428                 case ARG_THRESHOLD:
 429                         r = safe_atou(optarg, &arg_threshold);
 430                         if (r < 0 || arg_threshold > 100)
 431                                 return log_error_errno(r < 0 ? r : SYNTHETIC_ERRNO(EINVAL), "Failed to parse threshold: %s", optarg);
 432
 433                         break;
 434
 435                 case ARG_SECURITY_POLICY:
 436                         r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_security_policy);
 437                         if (r < 0)
 438                                 return r;
 439                         break;
 440
 441                 case ARG_JSON:
 442                         r = parse_json_argument(optarg, &arg_json_format_flags);
 443                         if (r <= 0)
 444                                 return r;
 445                         break;
 446
 447                 case ARG_ITERATIONS:
 448                         r = safe_atou(optarg, &arg_iterations);
 449                         if (r < 0)
 450                                 return log_error_errno(r, "Failed to parse iterations: %s", optarg);
 451
 452                         break;
 453
 454                 case ARG_BASE_TIME:
 455                         r = parse_timestamp(optarg, &arg_base_time);
 456                         if (r < 0)
 457                                 return log_error_errno(r, "Failed to parse --base-time= parameter: %s", optarg);
 458
 459                         break;
 460
 461                 case ARG_PROFILE:
 462                         if (isempty(optarg))
 463                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Profile file name is empty");
 464
 465                         if (is_path(optarg)) {
 466                                 r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_profile);
 467                                 if (r < 0)
 468                                         return r;
 469                                 if (!endswith(arg_profile, ".conf"))
 470                                         return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Profile file name must end with .conf: %s", arg_profile);
 471                         } else {
 472                                 r = free_and_strdup(&arg_profile, optarg);
 473                                 if (r < 0)
 474                                         return log_oom();
 475                         }
 476
 477                         break;
 478
 479                 case 'U': {
 480                         _cleanup_free_ char *mangled = NULL;
 481
 482                         r = unit_name_mangle(optarg, UNIT_NAME_MANGLE_WARN, &mangled);
 483                         if (r < 0)
 484                                 return log_error_errno(r, "Failed to mangle unit name %s: %m", optarg);
 485
 486                         free_and_replace(arg_unit, mangled);
 487                         break;
 488                 }
 489                 case '?':
 490                         return -EINVAL;
 491
 492                 default:
 493                         assert_not_reached();
 494                 }
 495
 496         if (arg_offline && !streq_ptr(argv[optind], "security"))
 497                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 498                                        "Option --offline= is only supported for security right now.");
 499
 500         if (arg_json_format_flags != JSON_FORMAT_OFF && !STRPTR_IN_SET(argv[optind], "security", "inspect-elf"))
 501                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 502                                        "Option --json= is only supported for security and inspect-elf right now.");
 503
 504         if (arg_threshold != 100 && !streq_ptr(argv[optind], "security"))
 505                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 506                                        "Option --threshold= is only supported for security right now.");
 507
 508         if (arg_scope == LOOKUP_SCOPE_GLOBAL &&
 509             !STR_IN_SET(argv[optind] ?: "time", "dot", "unit-paths", "verify"))
 510                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 511                                        "Option --global only makes sense with verbs dot, unit-paths, verify.");
 512
 513         if (streq_ptr(argv[optind], "cat-config") && arg_scope == LOOKUP_SCOPE_USER)
 514                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 515                                        "Option --user is not supported for cat-config right now.");
 516
 517         if (arg_security_policy && !streq_ptr(argv[optind], "security"))
 518                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 519                                        "Option --security-policy= is only supported for security.");
 520
 521         if ((arg_root || arg_image) && (!STRPTR_IN_SET(argv[optind], "cat-config", "verify", "condition")) &&
 522            (!(streq_ptr(argv[optind], "security") && arg_offline)))
 523                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 524                                        "Options --root= and --image= are only supported for cat-config, verify, condition and security when used with --offline= right now.");
 525
 526         /* Having both an image and a root is not supported by the code */
 527         if (arg_root && arg_image)
 528                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --root= or --image=, the combination of both is not supported.");
 529
 530         if (arg_unit && !streq_ptr(argv[optind], "condition"))
 531                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Option --unit= is only supported for condition");
 532
 533         if (streq_ptr(argv[optind], "condition") && !arg_unit && optind >= argc - 1)
 534                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Too few arguments for condition");
 535
 536         if (streq_ptr(argv[optind], "condition") && arg_unit && optind < argc - 1)
 537                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No conditions can be passed if --unit= is used.");
 538
 539         return 1; /* work to do */
 540 }
 541
 542 static int run(int argc, char *argv[]) {
 543         _cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL;
 544         _cleanup_(umount_and_rmdir_and_freep) char *unlink_dir = NULL;
 545
 546         static const Verb verbs[] = {
 547                 { "help",              VERB_ANY, VERB_ANY, 0,            help                   },
 548                 { "time",              VERB_ANY, 1,        VERB_DEFAULT, verb_time              },
 549                 { "blame",             VERB_ANY, 1,        0,            verb_blame             },
 550                 { "critical-chain",    VERB_ANY, VERB_ANY, 0,            verb_critical_chain    },
 551                 { "plot",              VERB_ANY, 1,        0,            verb_plot              },
 552                 { "dot",               VERB_ANY, VERB_ANY, 0,            verb_dot               },
 553                 /* ↓ The following seven verbs are deprecated, from here … ↓ */
 554                 { "log-level",         VERB_ANY, 2,        0,            verb_log_control       },
 555                 { "log-target",        VERB_ANY, 2,        0,            verb_log_control       },
 556                 { "set-log-level",     2,        2,        0,            verb_log_control       },
 557                 { "get-log-level",     VERB_ANY, 1,        0,            verb_log_control       },
 558                 { "set-log-target",    2,        2,        0,            verb_log_control       },
 559                 { "get-log-target",    VERB_ANY, 1,        0,            verb_log_control       },
 560                 { "service-watchdogs", VERB_ANY, 2,        0,            verb_service_watchdogs },
 561                 /* ↑ … until here ↑ */
 562                 { "dump",              VERB_ANY, VERB_ANY, 0,            verb_dump              },
 563                 { "cat-config",        2,        VERB_ANY, 0,            verb_cat_config        },
 564                 { "unit-files",        VERB_ANY, VERB_ANY, 0,            verb_unit_files        },
 565                 { "unit-paths",        1,        1,        0,            verb_unit_paths        },
 566                 { "exit-status",       VERB_ANY, VERB_ANY, 0,            verb_exit_status       },
 567                 { "syscall-filter",    VERB_ANY, VERB_ANY, 0,            verb_syscall_filters   },
 568                 { "capability",        VERB_ANY, VERB_ANY, 0,            verb_capabilities      },
 569                 { "filesystems",       VERB_ANY, VERB_ANY, 0,            verb_filesystems       },
 570                 { "condition",         VERB_ANY, VERB_ANY, 0,            verb_condition         },
 571                 { "compare-versions",  3,        4,        0,            verb_compare_versions  },
 572                 { "verify",            2,        VERB_ANY, 0,            verb_verify            },
 573                 { "calendar",          2,        VERB_ANY, 0,            verb_calendar          },
 574                 { "timestamp",         2,        VERB_ANY, 0,            verb_timestamp         },
 575                 { "timespan",          2,        VERB_ANY, 0,            verb_timespan          },
 576                 { "security",          VERB_ANY, VERB_ANY, 0,            verb_security          },
 577                 { "inspect-elf",       2,        VERB_ANY, 0,            verb_elf_inspection    },
 578                 {}
 579         };
 580
 581         int r;
 582
 583         setlocale(LC_ALL, "");
 584         setlocale(LC_NUMERIC, "C"); /* we want to format/parse floats in C style */
 585
 586         log_setup();
 587
 588         r = parse_argv(argc, argv);
 589         if (r <= 0)
 590                 return r;
 591
 592         /* Open up and mount the image */
 593         if (arg_image) {
 594                 assert(!arg_root);
 595
 596                 r = mount_image_privately_interactively(
 597                                 arg_image,
 598                                 DISSECT_IMAGE_GENERIC_ROOT |
 599                                 DISSECT_IMAGE_RELAX_VAR_CHECK |
 600                                 DISSECT_IMAGE_READ_ONLY,
 601                                 &unlink_dir,
 602                                 &loop_device);
 603                 if (r < 0)
 604                         return r;
 605
 606                 arg_root = strdup(unlink_dir);
 607                 if (!arg_root)
 608                         return log_oom();
 609         }
 610
 611         return dispatch_verb(argc, argv, verbs, NULL);
 612 }
 613
 614 DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run);